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Pulsed Laser Diode Driver

Photonics.com
Jan 2007
Analog Modules Inc.Request Info
 
The model 772 pulsed laser diode driver is a highly efficient (~75%), compact (4.3” x 2.7” x 1.5”) and lightweight (<10.5oz) unit comprised of a regulated DC converter and a pulsed driver.

With a 5- to 8-V DC input (18- to 32-V DC option available), the model 772 is designed to supply up to 140-A current pulses (50 to 400 ms) with <20 ms risetime into diode stacks of 15 to 24 V at an average power to the load up to 20 W.

The model 772 also provides power and trigger signals for AMI’s Pockels cell drivers. It does not require a heatsink and offers open circuit, short circuit and thermal overload protection. Alternative configurations can be made available for higher current, larger-stack voltages or custom packaging, including separating the driver and power supply cards for miniaturization. The model 772 is the ideal solution for compact, rugged applications such as lightweight ground-based and airborne laser designators.


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GLOSSARY
photonics
The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
Pockels cell
A device containing an electro-optic crystal and using the Pockels effect. A voltage applied across the crystal generates birefringence, causing plane-polarized light propagating through the crystal to be resolved into two orthogonal vectors. The change in retardation between the two vectors (ellipticity) is proportional to the magnitude of the electrical field. A crossed polarizer analyzes the output beam, resulting in intensity modulation. Response time can be in picoseconds.  
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